(Reposted as the previous posting attracted a troll).
New duemilanove, plugged it in it starts flashing it's LED as expected.
Wrote a script to flash two LEDs, setup the components (two leds each with 330ohm resistor in serial) worked fine.
Wrote a script to make sounds from a piezo device. Loaded, nothing happened (the duemilanove is 'flashing' digital ports 13-8 inclusive). Opened the serial monitor and suddenly the piezo starts working (ie the script starts running). Close the serial monitor and it goes back to flashing 13-8.
Wrote a different script (to cycle colours in an RGB LED). Same. With the serial monitor closed the duemilanove flashes digital pins 13-8, with the serial monitor open it starts running my script.
Shame you aren't going to get any answers until you post code. Even if it does not help anything, it would be worth your while posting it if you want any help.
No but I will take a guess at it. You have a short circuit capacitor or resistor fitted in place of a capacitor on the auto reset circuit. Only withe the monitor open is the board out of reset. however that doesn't explain the flashing when the monitor is closed.
I'm curious how pins can flash? did you attach LEDs or so?
PS: as stated, cross posting wastes time, I tried to offer help in the other topic, but I reckon it has been abandoned now. Don't feel like re-posting the same questions / comments.
PPS: for all that post "you're the troll!".. could you please stop? you're getting yourself worked up and give a false impression of the forum. This forum isn't that hostile, at least I hope it isn't, so could we please show this aspect? if you don't have anything to contribute, just don't post...
